c-cd cccc ccci cccu ccdc ccdi ccdr ccic ccid ccii ccir ccrc ccri ccuc cd-r cddr cdic cdii cicc cici cicr cicu cidc cidi cidr ciid ciii circ ciri cirr ciuc crcc crcr crdc cric criu crud cucc cuci cudi cui- cuir curd curi curr dccc dcci dccu dcii dddd ddrc dici didi didu diii dird dirr dric drui druu dudd dudu duid duir duri duru duur iccc icci iccr iccu icdc icdd icrc icrr icru idcr idic idid idir idrc iicd iiii iirc iiuc ircc ircd ircu irdc iri- iric irid irrc irri iucc iuiu rccc rcdc rcic rcid rcrd ricc ridc ridd ridi riri rrrr ruci rudd rudi ruid rurc rurd ruri ruru ruud ucci ucdc ucdd ucrc uddi udic udid udir uirr urci urdu uric uriu urri urur uuri uuuu